ZODORE 30A auto 12V/24V PWM solar charge controller LCD Battery Charge Controller for off grid system solar voltage regulator with 5V output USB This solar controller is equipped with industrial grade STM 8 microprocessor to control the charge and discharge process and has perfect and reliable battery charge and discharge period management. The charge circuit is characterized by high efficiency and low consumption by controlling the MOSFET of ultralow internal resistance with PWM. This controller has multiple load control modes and is adaptable to different industries. System voltage: 12V/24V; Maximum voltage of PV: 40V; Maximum charge current: 30A USB charge port: 5V/1A